Description

Huawei CloudEngine S5731S-L8T2ST-RUA Remote Unit (8-Port Gigabit)

The Huawei CloudEngine S5731S-L8T2ST-RUA is a high-density, non-PoE Gigabit Remote Unit (RU) tailored for the Huawei Simplified Network Solution. With 8 x 10/100/1000Base-T downlink ports and a flexible dual-media uplink (1 x SFP + 1 x RJ45), this unit provides an efficient way to expand wired network capacity at the edge while maintaining a fanless, silent footprint.

Key Performance

High-Density Data Access: 8 full-gigabit ports allow for connecting an entire cluster of workstations, laptops, or office peripherals via a single uplink.
Flexible Dual Uplinks: Features 1 x GE SFP port and 1 x 10/100/1000Base-T port. This gives you the freedom to choose between fiber-optic backhaul for distance or copper Ethernet for existing infrastructure.
Plug-and-Play Management: As a remote unit, it is managed as a virtual extension of a central switch. No local IP configuration or independent software management is required, ensuring zero-touch deployment.
Fanless Silent Operation: The 0 dB noise design ensures it can be placed in open offices, libraries, or meeting rooms without any acoustic disturbance.
Ultra-Low Power Consumption: Optimized for energy efficiency, this non-PoE model draws minimal power, reducing operational costs.

Performance

Forwarding performance: 15Mpps
Switching capacity: 20/120 Gbps

Accessories & Compatibility

Power Adapter: Includes a compact external 12V DC power adapter.
Optical Modules: Compatible with Huawei GE SFP modules (Multi-mode and Single-mode).
Central Switch Support: Requires a Huawei “Central Switch” (e.g., S6730-H, S5731-H, or S12700E) for management and operation.

Why Choose S5731S-L8T2ST-RUA?

Cost-Effective Expansion: Provides 8 gigabit ports at a much lower price point than PoE models, perfect for environments where devices have their own power source.
Cabling Savings: Instead of running 8 cables from the server room, run just 1 fiber or copper cable to this RU to serve 8 users.
Media Independence: The combination of SFP and RJ45 uplinks ensures compatibility with any existing building cabling.

Specification

Item	Specification
Dimensions without packaging (H x W x D) [mm(in.)]	Basic dimensions (excluding the parts protruding from the body): 27.0 mm x 210.0 mm x 130.0 mm (1.06 in. x 8.27 in. x 5.12 in.) Maximum dimensions (the depth is the distance from ports on the front panel to the parts protruding from the rear panel): 27.0 mm x 210.0 mm x 130.0 mm (1.06 in. x 8.27 in. x 5.12 in.)
Dimensions with packaging (H x W x D) [mm(in.)]	82.0 mm x 347.0 mm x 242.0 mm (3.23 in. x 13.66 in. x 9.53 in.)
Chassis height [U]	0.61 U
Chassis material	Metal
Weight without packaging [kg(lb)]	0.84 kg (1.85 lb)
Weight with packaging [kg(lb)]	1.14 kg (2.51 lb)
Typical power consumption [W]	7.73 W (device) 7.98 W (device + power adapter)
Typical heat dissipation [BTU/hour]	26.38 (device) 27.23 (device + power adapter)
Maximum power consumption [W]	7.86 W (device) 8.11 W (device + power adapter)
Maximum heat dissipation [BTU/hour]	26.82 (device) 27.67 (device +power adapter)
Static power consumption [W]	3.23 W
MTBF [years]	84.79 years
Availability	> 0.99999
Noise at normal temperature (acoustic power) [dB(A)]	Noise-free (no fans): < 30
Noise at normal temperature (acoustic pressure) [dB(A)]	Noise-free (no fans): < 20
Number of card slots	0
Number of power slots	0
Number of fans modules	0
Redundant power supply	Not supported
Long-term operating temperature [°C(°F)]	-5°C to +45°C (23°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)
Restriction on the operating temperature variation rate [°C(°F)]	When the altitude is 1800-5000 m (5905.44-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (721.78 ft.). The device cannot start when the temperature is lower than 0°C (32°F). The operating temperature of a device ranges from -5°C to +45°C (23°F to 113°F) when the device uses the following optical modules: – GE optical modules with a transmission distance of less than or equal to 10 km
Storage temperature [°C(°F)]	–40°C to +70°C (–40°F to +158°F)
Long-term operating relative humidity [RH]	5% RH to 95% RH, non-condensing
Long-term operating altitude [m(ft.)]	0–5000 m (0–16404 ft.)
Storage altitude [m(ft.)]	0–5000 m (0–16404 ft.)
Power supply mode	Power adapter
Rated input voltage [V]	Power adapter input: 100–240 V AC; 50/60 Hz Power adapter output: 12 V DC
Input voltage range [V]	Power adapter input: 90–290 V AC; 47–63 Hz
Maximum input current [A]	1 A
Memory	–
Flash memory	–
Console port	Not supported
Eth Management port	Not supported
USB	Not supported
RTC	Not supported
RPS input	Not supported
Service port surge protection [kV]	Common mode: ±6 kV
Power supply surge protection [kV]	Power adapter: ±6 kV in differential mode and ±6 kV in common mode
Ingress protection level (dustproof/waterproof)	IP20
Types of fans	None
Heat dissipation mode	Natural heat dissipation
Airflow direction	–
PoE	Not supported
Certification	EMC certification Safety certification Manufacturing certification

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